Jump to content

File:Antarctic Ice shelves drive the formation of supercooled seawater.png

Page contents not supported in other languages.
This is a file from the Wikimedia Commons
From Wikipedia, the free encyclopedia

Original file (1,558 × 884 pixels, file size: 120 KB, MIME type: image/png)

Summary

Description
English: A schematic that shows how the pressure-dependent depression of the freezing point of seawater can lead to the formation of supercooled seawater near the surface adjacent to large, thick, floating Antarctic ice shelves. Where seawater interacts with ice, it must come to the equilibrium in-situ freezing point at that depth. If the water then moves upwards in the water column, its temperature will be below the in-situ freezing point at these shallower depths - it will be supercooled. This mechanism is driven by thermohaline circulation, and may be referred to as an "ice pump". Supercooling (being slightly below the in-situ freezing point) drives the formation of anchor ice on the seafloor adjacent to ice shelves. No horizontal scale is provided or appropriate; the horizontal dimension represented in this schematic may be as large as 1000 km if representing the the Ross Ice shelf and Ross Sea. Also, note annual sea ice thickness may be 1-3m, which is not well-represented here.
Date
Source

Using Adobe Illustrator

Previously published: Unpublished
Author Paul A. Cziko Pcziko
Other information
English: Created by Paul A. Cziko

Licensing

I, the copyright holder of this work, hereby publish it under the following licenses:
GNU head Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.
w:en:Creative Commons
attribution share alike
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
You are free:
  • to share – to copy, distribute and transmit the work
  • to remix – to adapt the work
Under the following conditions:
  • attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  • share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
You may select the license of your choice.

Captions

Add a one-line explanation of what this file represents

Items portrayed in this file

depicts

1 January 2010

image/png

b33e4559fee3604081a13daa59a38e7b029790ae

122,566 byte

884 pixel

1,558 pixel

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current19:15, 5 October 2016Thumbnail for version as of 19:15, 5 October 20161,558 × 884 (120 KB)CmdrjamesonCompressed with pngout. Reduced by 100kB (45% decrease).
20:29, 4 July 2012Thumbnail for version as of 20:29, 4 July 20121,558 × 884 (220 KB)Pcziko{{subst:Upload marker added by en.wp UW}} {{Information |Description = {{en|A schematic that shows how the pressure-dependent depression of the freezing point of seawater leads to the formation of supercooled seawater near the surface adjacent to large...

The following page uses this file:

Global file usage

The following other wikis use this file:

Metadata